α-attractor and reheating in exponential harmonic field model

We have studied alpha attractor cosmology with exponential harmonic fields and reheating phase after inflation. The results show that, for large limit of alpha, the inflationary parameters of the used model confirm the observational data. For exponential harmonic fields, we have obtained constraints on reheating parameters. It arises that for these fields, reheating can last longer than canonical and tachyon fields.